delicious_export.rb

#!/usr/bin/env ruby

require 'cgi'
require 'json'
require 'open-uri'
require 'pathname'

def get url
  p ['get', url]
  r = OpenURI.open_uri(url).read
  sleep 1
  r
end

def export user
  base = 'https://avosapi.delicious.com/api/v1/posts'
  a = nil
  lim = 1000
  r = []
  count = 0
  lim.times do
    url = a ? "#{base}/public/#{user}/time?limit=20&anchor=#{a}&index=0&inclpriv=1&bundle_name=null" : "#{base}/public/#{user}/time"
    res = get url
    v = JSON.parse res

    if v['error']
      p ['error', v['error']]
      exit 1
    end

    if !v['pkg']
      break
    end
    count += v['pkg'].size
    v['pkg'].each { |i| r << i }
    a = v['pkg'].last['time_created'] - 1
    p ['count', count, a]
  end
  out = "delicious_export.html"
  open(out, 'w') { |f| f.write bookmarks_html(r) }
  p ['ok', out]
end

def bookmarks_html bs
  list = bs.map do |i|
    tags = i['tags'] ? i['tags'].join(',') : ''
    d = [i['url'], i['time_created'].to_s, tags, i['title']].map { |j| CGI::escapeHTML j }
    s = %(<DT><A HREF="%s" ADD_DATE="%s" PRIVATE="0" TAGS="%s">%s</A>\n) % d
    if i['note']
      s << (('<DD>%s' % CGI::escapeHTML(i['note'])) + "\n")
    end
    s
  end.join
  t = <<-EOS
<!DOCTYPE NETSCAPE-Bookmark-file-1>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">
<!-- This is an automatically generated file.
It will be read and overwritten.
Do Not Edit! -->
<TITLE>Bookmarks</TITLE>
<H1>Bookmarks</H1>
<DL><p>
#{list}
</DL><p>
EOS
end

if ARGV.first
  export ARGV.first
else
  puts 'Usage: ruby delicious_export.rb username'
end